<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        * {
            margin: 0;
            padding: 0;
        }

        body {
            background: url(./bg.jpeg) no-repeat;
        }

        .content {
            width: 400px;
            height: 450px;
            background-color: white;
            margin: 150px auto;
            border-radius: 10px;
            text-align: center;
            line-height: 50px;
        }

        .title {
            background-color: rgb(84, 160, 210);
            border-radius: 5px;
            font-size: 18px;
            color: white;
            margin-bottom: 25px;
        }

        .text input {
            box-sizing: border-box;
            width: 300px;
            height: 25px;
            padding-left: 20px;
        }

        .password input {
            width: 300px;
            height: 25px;
            box-sizing: border-box;
            padding-left: 20px;
        }
        .queren input {
            width: 300px;
            height: 25px;
            box-sizing: border-box;
            padding-left: 20px;
        }
        .emil input {
            width: 300px;
            height: 25px;
            box-sizing: border-box;
            padding-left: 20px;
        }
       .span{
        text-align: left;
        padding-left: 60px;
        cursor: pointer;
       }
       button{
        width: 60px;
        height: 25px;
        background-color: lawngreen;
        border: none;
        border-radius: 5px;
        color: white;
        cursor: pointer;
       }
    </style>
</head>
<body>
    <div class="content">
        <div class="title">欢迎登录后台管理系统</div>
        <div class="text">
            <input type="text" placeholder="输入用户名">
        </div>
        <div class="password">
            <input type="password" placeholder="输入密码">
        </div>
        <div class="queren">
            <input type="password" placeholder="输入确认密码">
        </div>
        <div class="emil">
            <input type="text" placeholder="输入邮箱">
        </div>
        <div class="span">
            <span>已有账号,去登录</span>
        </div>
        <button>登录</button>
    </div>
</body>
</html>